Non-glaring headlight.



Patented Nov. "6, 1917.

L BENNETT.

NOMQLARING HEADLIGHT. APPLICATION FILED NOV. l. 1916.

JOHN' BENNETT, OF` JEANNETTE,LPENNSYLVAIA.-

Nou-ennemie- Humanism:

To all whom' it may concern.'

.Be it known that I, JOHN BENNETT, a eltizen of tlieUnited States,residing at Jean-. --nette, in the county of Westmoreland and .State of4Pennsylvania, have invented certain new and useful Improvements in Non-Glaring Headlights, of which the following is a specification. y

This invention relates to new and useful improvements in non-glaringhead-light lens'l The primary object of the invention is the provisionof a lens for head lights ob'viating all glare due to the intensity ofthe illuminating` body employed. A

A further object of the invention is to render head-lights upon vehiclessuch as autoinohiles less dangerous by directing the rays forwardly ofthe head-light in concentrated parallel horizontal planes. eliminatingthe usual glaring effectI of the concentrated rays from the parabolicreliector employed.

A still further object is the provision of a lens for head-lightsarranged with annular portions concentrically disposed for parallelingand concentrating the horizontal reflected rays, the interveningportions of the lens being rovided with means for dimming and diffusingthe angular rays from the reliector. y

ln the drawing forming a part of this aplication and in which likereference hharacters correspond to like parts throughout the severalviews.

Figure 1. is a central diainetrical sectional view through a head-lightprovided with the vpresent form of lens,

Fig. 2. is a rear elevation of a quarter see-Y tion of thelens and Fig.3. is a front elevation ci quadrant thereof.

This invention relating to lenses for headlights, 'the saine is hereinillustrated as a glass disk arranged in the usual manner in a head-lightcasing 11 provided with a parabolic reflector. 12 and an electric larnpror bulb-13 centrally positioned therein, while a securing ring 14 iscarried by the casing overlying` the lens with a connecting strip 15positioned therebetween'.

The lens 10 has an annular marginal portion 16, while the remainder oi'the lens is formed of a. plurality ofalunular concentric waves 1.7forming .concentrating lens por tions,

Specoation ofLcttersPatcait: n

Application led November '7, 1916,- Serial`No."130,18.

Patented Nov. 6, 19157.

i The lensllliisso positioned in the headlight as to arr-ange the convexfaces 18 of the lens portion 17 inwardly of the headlight adjacent thereflector 1Q While'the annular concave faces 19 of said portion 17 arearranged outwardly and forwardly of the head-light as is illustrated inFig. 1 of the drawing.

This arrangement of the waved portion of the lens provides annular Hatfaces 20 between the concave portions 19 and such faces 20 are upon theforward outer side of the lens 10 all arranged in the same plane as theouter face of the marginal portion 16. The exposed outer face of saidmarginal portion 16 and all of the fiat faces 20 are preferably groundor suitably roughened or coated as shown in Fig. 3 of the drawing 'fordiffusing all light reflected thereon emanating from the lamp 13 wherebysuch rays will be dimmed and while adording light upon the roadway willhave no glaring effect to endanger traflic.

In Fig. 1 of the drawing a plurality of parallel horizontal raysreflected from the reflector 10 which have emanated from the lamp 13 areindicated at 21. Substantially the entire inner face of the lens 10consists of lthe convex annular lens portions 18'and the rays 21passing-through such portions 18 are refracted-convergently as at 22,passing outwardly forwardly of the lens 10 in concentrated parallelhorizontal rays as shown at 23. The horizontal rays strikingintermediate the convex faces 18 of the lens 10 and all angular raysfrom the reilector 20 which are not horizontally arranged pass throughthe flat ground faces at the forward side of the lens 1() being diffusedas heretofore noted.

It will be understood that the parallel rays 21 and-23 are. arranged inwhat mi ht be ternied bundles of tubular formationgby reason of theconcentric arrangement of the lens portion 1'?, such concentric tubularhundles of the rays 23 forwardly of' the headlight resulting infurnishing a brighter light for illuminating the roadway without'glaring or dazzling the eyes of' a beholder, all of which is by-reasonof the fact that the rays 23 are horizontal rays and are not convergentuniting rays producing the usual blinding effect.

While the form of the lens as herein illustrated and described isbelieved to .be the preferable embodiment thereof, itis never thelessunderstood that the. gist of the invention is the production ofconcentrated parallel rays by means of a lens and that changes may bemade in the structure Without in any manner departing from the spiritand scope of the invention as hereinafter claimed.

What I claim as nev is:-

1. A lens formed of a disk of vitreous material having concentric convexlens portions at one side thereof and concentric concave portions 'atthe` opposite side, the concave portions lying opposite and centrally ofthe convex portions and being of lesser ,Width than the correspondingconvex portions. l

2. A lens consisting of a glass disk having concentrically arranged wavyportions forming concentric convex lens faces on one side thereof andconcentric concave portions on the opposite side, flat annular facesbetween the said concave portions, and light, iffusing means providedupon' said annular aces.

3. A lens consisting of a glass disk having on one side`concentricallyarranged wavy portions forming concentric convex lensfaces, and on the other side having alternating concentric concave.portions and concentric flat lens faces. c

4. A lens consisting of a disk of transparent` material having on oneface annular concentric""convex lens fac-es and on the other face havingannular concentric concave portions and fiat lens faces.

5. A lens consisting of a diskof transparen/tmaterial having on one faceabutting annular concentric convex lens faces and on the other sidehaving spaced annular concentric concave portions, the spaces betweenthe concave portions provided with light di'using means. i.

vII/iiestimony whereof I aiix my signature.

JOHN BENNETT.

i Witnesses:

H. O. ROWAN, E. C. Gunnar.v

